Traffic-light-free overpass at intersection

ABSTRACT

A traffic-light-free overpass at intersections has roads arranged as follows: arranging from west to east a straight lane for ground-level motor vehicles, a straight lane for ground-level non-motor vehicles and pedestrians, a left-turn lane for ground-level motor vehicles, a right-turn lane for elevated motor vehicles; arranging from east to west a straight lane for elevated motor vehicles, a straight lane for elevated non-motor vehicles and pedestrians, a left-turn lane for elevated motor vehicles, a right-turn lane for ground-level motor vehicles; arranging from south to north a straight lane for underground motor vehicles, a straight lane for underground non-motor vehicles and pedestrians, a right-turn lane for elevated motor vehicles, a left-turn lane for elevated motor vehicles, a section of straight lane for elevated motor vehicles, a left-U-turn lane for underground motor vehicles; arranging from north to south a straight lane for underground motor vehicles, a straight lane for underground non-motor vehicles and pedestrians, a left-turn lane for ground-level motor vehicles, a right-turn lane for ground-level motor vehicles, and a left-U-turn lane for underground motor vehicles. The traffic-light-free overpass at intersections of this functional invention is built on the established roads rather than the new lands, which saves the capital investment, and has a complete function, where this overpass has exclusive lanes in each direction without crossings. The scale of the overpass is 5 times less than those in the market, which is beneficial to the rational use of the metropolitan tracks and traffic resources.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This functional invention relates to a multi-level traffic systemarchitecture for traffic flow crossing intersections, and moreparticularly to a traffic-light-free overpass at intersections.

2. Description of Related Art

Currently, the overpass as disclosed in the prior arts has thedeficiencies including a large scale, complicated layout, highconstruction costs and incomplete functions, requires the assistance ofthe traffic lights to control the traffic flow, fails to functionallymeet the needs of motor vehicles making a left turn and U-turn and theneeds of pedestrians and non-motor vehicles crossing the roads withoutobstacle, which consequently incurs the unsmooth traffic flow andaffects the life quality of civil residents.

SUMMARY OF THE INVENTION

An objective of this functional invention is to provide atraffic-light-free overpass at intersections, which has a reasonablearrangement and achieves the easy access and smooth traffic flow,thereby solving the problems existing in the prior arts.

The technical issue to be solved by this functional invention isrealized by the following technical solution. This functional inventionincludes a traffic-light-free overpass at intersections, which ischaracterized by that this overpass has roads arranged as follows:

(1) arranging from west to east:

a straight lane for ground-level motor vehicles (motorized vehicles),and a straight lane for ground-level non-motor vehicles (non-motorizedvehicles) and pedestrians which is next to the straight lane forground-level motor vehicles;

a left-turn lane for ground-level motor vehicles, which is diverged toleft at the ground level and merging to a section of straight lane forelevated motor vehicles travelling from south to north;

a right-turn lane for elevated motor vehicles, which is diverged toright and continuously extends to form a section of straight lane forelevated motor vehicles travelling from north to south;

(2) arranging from east to west:

a straight lane for elevated motor vehicles, and a straight lane forelevated non-motor vehicles and pedestrians which is next to thestraight lane for elevated motor vehicles;

a left-turn lane for elevated motor vehicles, which is diverged to leftand continuously extends to form a section of straight lane for elevatedmotor vehicles travelling from north to south, where the end of thestraight lane for elevated motor vehicles extends to the ground leveland continues going straight from north to south and underpassing theleft-turn lane for elevated motor vehicles travelling from south tonorth;

a right-turn lane for ground-level motor vehicles, which is diverged toright and continuously extends to form a section of straight lane forground-level motor vehicles travelling from south to north;

(3) arranging from south to north:

a straight lane for underground motor vehicles, and a straight lane forunderground non-motor vehicles and pedestrians which is next to thestraight lane for underground motor vehicles;

a right-turn lane for elevated motor vehicles, which is diverged toright and continuously extends to form a section of straight lane forelevated motor vehicles travelling from west to east;

a left-turn lane for elevated motor vehicles, which is diverged to leftand continuously extends to form a section of straight lane for elevatedmotor vehicles travelling from east to west;

a section of straight lane for elevated motor vehicles, which is joinedwith the left-turn lane for ground-level motor vehicles travelling fromwest to east.

The traffic-light-free overpass at intersections of this functionalinvention is advantageous in the following aspects.

1) When the overpass is built strictly abiding with the designstandards, the scale of the overpass will be 5 times less than those inthe market, which facilitates the rational use of the metropolitantracks and traffic resources.

2) The traffic-light-free overpass at intersections of this functionalinvention is built on the established roads rather than the new lands,which saves the capital investment.

3) The traffic-light-free overpass at intersections of this functionalinvention has a complete function, where this overpass has exclusivelanes in each direction without crossings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide a furtherunderstanding of the invention, and are incorporated in and constitute apart of this specification. The drawings illustrate embodiments of theinvention and, together with the description, serve to explain theprinciples of the invention.

FIG. 1 is a schematic structural view of this functional invention.

DESCRIPTION OF THE EMBODIMENTS The First Embodiment

Referring to 1, a traffic-light-free overpass at intersections isprovided, which has roads arranged as follows:

(1) arranging from west to east:

a straight lane 2 for ground-level motor vehicles, and a straight lane 1for ground-level non-motor vehicles and pedestrians which is next to thestraight lane 2;

a left-turn lane 4 for ground-level motor vehicles, which is diverged toleft at the ground level and merging to a section of straight lane 18for elevated motor vehicles travelling from south to north;

a right-turn lane 3 for elevated motor vehicles, which is diverged toright and continuously extends to form a section of straight lane forelevated motor vehicles travelling from north to south;

(2) arranging from east to west:

a straight lane 11 for elevated motor vehicles, and a straight lane 10for elevated non-motor vehicles and pedestrians which is next to thestraight lane 11;

a left-turn lane 13 for elevated motor vehicles, which is diverged toleft and continuously extends to form a section of straight lane forelevated motor vehicles travelling from north to south, where the end ofthe straight lane for elevated motor vehicles extends to the groundlevel and continues going straight from north to south and underpassingthe left-turn lane 19 for elevated motor vehicles from south to north;

a right-turn lane 12 for ground-level motor vehicles, which is divergedto right and continuously extends to form a section of straight lane forground-level motor vehicles travelling from south to north;

(3) arranging from south to north:

a straight lane 16 for underground motor vehicles, and a straight lane15 for underground non-motor vehicles and pedestrians which is next tothe straight lane 16;

a left-turn lane 19 for elevated motor vehicles, which is diverged toleft and continuously extends to form a section of straight lane forelevated motor vehicles travelling from east to west;

a section of straight lane 18 for elevated motor vehicles, which isjoined with the left-turn lane 4 for ground-level motor vehiclestravelling from west to east;

(4) arranging from north to south:

a straight lane 6 for underground motor vehicles, and a straight lane 5for underground non-motor vehicles and pedestrians which is next to thestraight lane 6;

a left-turn lane 8 for ground-level motor vehicles, underpassing thestraight lane 18 for elevated motor vehicles travelling from south tonorth;

a right-turn lane 7 for ground-level motor vehicles.

The Second Embodiment

In the traffic-light-free overpass at intersections according to thefirst embodiment, the right-turn lane 14 for elevated motor vehiclestravelling from south to north is arranged next to the left-turn lane 13for elevated motor vehicles travelling from east to west; and aleft-turn lane 19 for elevated motor vehicles travelling from south tonorth is arranged next to the right-turn lane 3 for elevated motorvehicles travelling from west to east.

The Third Embodiment

In the traffic-light-free overpass at intersections according to thefirst embodiment or the second embodiment, pedestrian steps are arrangedbetween each underground passage and the ground and between the groundand the elevated passages, for pedestrians changing directions from thewest-east direction to the south-north direction or from the south-northdirection to the west-east direction.

The Fourth Embodiment

In the traffic-light-free overpass at intersections according to thefirst embodiment, the second embodiment or the third embodiment, fournon-motor vehicle lanes 9 are arranged at the ground level, whichinclude a lane for non-motor vehicles travelling in the south-northdirection to make a left turn, a lane for non-motor vehicles travellingin the west-east direction to make a right turn, a lane for non-motorvehicles travelling in the south-north direction to make a right turn,and a lane for non-motor vehicles travelling in the west-east directionto make a left turn.

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentinvention without departing from the scope or spirit of the invention.In view of the foregoing, it is intended that the present inventioncover modifications and variations of this invention provided they fallwithin the scope of the following claims and their equivalents.

1. A traffic-light-free overpass at intersections, comprising roadsarranged as follows: (1) arranging from west to east: a straight lanefor ground-level motor vehicles, and a straight lane for ground-levelnon-motor vehicles and pedestrians which is next to the straight lanefor ground-level motor vehicles; a left-turn lane for ground-level motorvehicles, which is diverged to left at the ground level and merging to asection of straight lane for elevated motor vehicles travelling fromsouth to north; a right-turn lane for elevated motor vehicles, which isdiverged to right and continuously extends to form a section of straightlane for elevated motor vehicles travelling from north to south; (2)arranging from east to west: a straight lane for elevated motorvehicles, and a straight lane for elevated non-motor vehicles andpedestrians which is next to the straight lane for elevated motorvehicles; a left-turn lane for elevated motor vehicles, which isdiverged to left and continuously extends to form a section of straightlane for elevated motor vehicles travelling from north to south, wherethe end of the straight lane for elevated motor vehicles extends to theground level and continues going straight from north to south andunderpassing the left-turn lane for elevated motor vehicles travellingfrom south to north; a right-turn lane for ground-level motor vehicles,which is diverged to right and continuously extends to form a section ofstraight lane for ground-level motor vehicles travelling from south tonorth; (3) arranging from south to north: a straight lane forunderground motor vehicles, and a straight lane for undergroundnon-motor vehicles and pedestrians which is next to the straight lanefor underground motor vehicles; a left-turn lane for elevated motorvehicles, which is diverged to left and continuously extends to form asection of straight lane for elevated motor vehicles travelling fromeast to west; a section of straight lane for elevated motor vehicles,which is joined with the left-turn lane for ground-level motor vehiclestravelling from west to east; (4) arranging from north to south: astraight lane for underground motor vehicles, and a straight lane forunderground non-motor vehicles and pedestrians which is next to thestraight lane for underground motor vehicles; a left-turn lane forground-level motor vehicles, underpassing the straight lane for elevatedmotor vehicles travelling from south to north; a right-turn lane forground-level motor vehicles.
 2. The traffic-light-free overpass atintersections according to claim 1, wherein the right-turn lane forelevated motor vehicles travelling from south to north is next to theleft-turn lane for elevated motor vehicles travelling from east to west;the left-turn lane for elevated motor vehicles travelling from south tonorth is next to the right-turn lane for elevated motor vehiclestravelling from west to east.
 3. The traffic-light-free overpass atintersections according to claim 1, wherein pedestrian steps arearranged between each underground passage and the ground and between theground and the elevated passages, for pedestrians changing directionsfrom the west-east direction to the south-north direction or from thesouth-north direction to the west-east direction.
 4. Thetraffic-light-free overpass at intersections according to claim 1,wherein four non-motor vehicle lanes are arranged at the ground level,which include a lane for non-motor vehicles travelling in thesouth-north direction to make a left turn, a lane for non-motor vehiclestravelling in the west-east direction to make a right turn, a lane fornon-motor vehicles travelling in the south-north direction to make aright turn, and a lane for non-motor vehicles travelling in thewest-east direction to make a left turn.
 5. The traffic-light-freeoverpass at intersections according to claim 1, wherein the scale of theoverpass is 5 times less than those in the market.
 6. Thetraffic-light-free overpass at intersections according to claim 2,wherein four non-motor vehicle lanes are arranged at the ground level,which include a lane for non-motor vehicles travelling in thesouth-north direction to make a left turn, a lane for non-motor vehiclestravelling in the west-east direction to make a right turn, a lane fornon-motor vehicles travelling in the south-north direction to make aright turn, and a lane for non-motor vehicles travelling in thewest-east direction to make a left turn.
 7. The traffic-light-freeoverpass at intersections according to claim 3, wherein four non-motorvehicle lanes are arranged at the ground level, which include a lane fornon-motor vehicles travelling in the south-north direction to make aleft turn, a lane for non-motor vehicles travelling in the west-eastdirection to make a right turn, a lane for non-motor vehicles travellingin the south-north direction to make a right turn, and a lane fornon-motor vehicles travelling in the west-east direction to make a leftturn.